LibreCAD is a free Open Source CAD application for Windows. Support and documentation is free from our large, dedicated community of users, contributors and developers. You, too, can also get involved! LibreCAD is an efficient and useful application that that be used to generate 2D CAD files, providing you with numerous tools and options that you can use. Additionally, you can open existing DXF files, created by other similar utilities, and edit their contents, without any limitations.